负载敏感液压泵稳定性仿真与参数优化  

Stability simulation and parameter optimization of load sensing pump

作　　者：马冲[1] 孔晓武[1] 

机构地区：[1]浙江大学流体传动与控制国家重点实验室,浙江杭州310027

出　　处：《机电工程》2011年第5期548-552,共5页Journal of Mechanical & Electrical Engineering

基　　金：浙江省重大科技专项和优先主题计划资助项目(2007C11171)

摘　　要：针对负载敏感泵压力偏差较大与稳定性差的问题,基于Pro/E、ADAMS以及AMESim专业仿真软件建立了负载敏感液压泵的虚拟样机。通过理论分析与仿真,提出了负载敏感液压泵变量机构控制系统中阻尼孔和容腔的参数匹配方法,基于该方法对56 cc/r的负载敏感液压泵进行了优化,得到了较好的阻尼孔和容腔的匹配效果。最后,通过试验验证了仿真分析的正确性。研究结果表明,参数优化后的负载敏感液压泵具有较好的稳定性,降低了恒压控制的压力偏差以及压力波动。Aiming at the problem that the large pressure bias and the poor stability of the load sensing pump,a virtual prototype of a load sensing pump was developed by combining Pro/E,ADAMS and AMESim.Through analyzing the pump＇s working principle and the simulation results,a method that how to match the volume and the diameter of damping orifices was reached.Based on this method,the 56 cc/r load sensing pump was optimized,and the better match effect of volume and damping orifice was gotten.The feasibility and effectiveness of this method were verified through many experiments.The results indicate that the load sensing pump optimized shows a stable performance,and the output pressure bias and vibration are decreased in high pressure condition.

关 键 词：负载敏感液压泵 阻尼孔 稳定性 压力偏差 参数优化 

分 类 号：TH322[机械工程—机械制造及自动化]